[jzwinck]

I came here to write something very similar. Visa and their competitors all have the ability to transport data about the payment. Most receipts are a fairly small raster image which could be sent as an extension. Visa could also offer a structured text receipt data format but the image may actually be safer to avoid a billion questions about how to represent unusual situations around surcharges, optional extras, custom discounts, split checks etc.

It would be important for the receipt to include the original broken-out list of items purchased, and not just the "credit card receipt" with the total paid. People need detailed receipts for returns and business expenses.

[bitshiftfaced]

In many cases, the POS software would have to go out of its way to share the itemized receipt details with the credit card processor. There's probably an incentive to get paid for that data elsewhere that overshadows the benefit to the user.

[AnotherGoodName]

Some of the payment systems do now allow you to associate an email address with cards which gets you itemised receipts at the cost of privacy.

I actually do use this a lot. Have a corp card and corp email and it’s setup with stripe, square, bunnings (an australia thing) etc. to email receipts. For the corp use case its great. Spam that one use corp email all you want, just send me the digital receipts.